Six people, including one police officer, died in crashes on Quebec highways over the long weekend.

The latest happened just before 7 p.m. Monday, when a 41-year-old motorcyclist travelling on Route 243 in Shefford, near Bromont, crossed the centre lane and collided with an oncoming van.

Police said the people in the van, a couple in their 50s, were not seriously injured.

Two hours earlier, 77-year-old cyclist was struck and trapped beneath the wheels of a tanker truck in the Mauricie town of Champlain.

The female cyclist was pronounced dead on the scene.

Driver killed, brothers survive

At around 5 p.m. Monday, a crash on Charlotte Road near Saint-Liboire in Montérégie killed one young driver and injured her teenage brothers who were passengers in the car.

Police said the vehicle collided head-on with an SUV that was travelling in the wrong direction.

The 18-year-old driver was pronounced dead in hospital. Her 14-year-old and 16-year-old brothers were treated for serious injuries. The truck driver was also seriously injured.

Three more people – a 33-year-old police officer, a 39-year-old man and a 57-year-old woman – were also killed in crashes over the weekend.

Six fatal crashes were reported in SQ territory on the holiday weekend. Six fatal crashes were reported in SQ territory on the holiday weekend. (Radio-Canada)